Have you ever seen a basement ACTUALLY pushed in like this?

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US
For years I've fielded calls of clients who were "scared" that this might happen.....

Finally, one called me that actually did happen..... (I think).

I shot a vid to ask y'alls opinion...

Do you think it is the tree? My guess is yes, but I'd like to hear from others who have seen lots of these....

Thanks in advance!

 
Video won't play for me, it just freezes... Trees will not damage a dry basement in most cases. If it's a porous, crappy foundation with any amount of moisture, all bets are off. I have seen roots in basements before, all of them were situations where there was moisture and old or shoddy construction.

Tom
 
I'm not sure man, but thanks for the video! I'm curious to hear what people have to say about this one.

I always thought that as roots expand with time, they could begin to press the foundation with some substantial force.
 
Thank for the comments yall. Yeah, the tree was leaning some toward the house. I was uncomfortable to recommend that it stays. If failure occurred, target (house) would be impacted, consequences would be sever.....

Any others with thoughts?
 
I've been in several with damage about like this one from tree roots. I've been in two that were by far and away worse. One of those, I was living in at the time. 40"+ DBH cottonwood tree between the house and a canal. The tree was very small, probably, when the canal was built. Roots larger than 8" in diameter came through the basement wall at about 2:00 AM and we went outside to investigate. Sounded like a bomb going off. Took flashlight outside and looked down into the basement through the outside bulkhead entrance. Mud was up to the top of the water heater, which was electric (we actually still had hot water). Roots everywhere, they were under such tension that the entire foundation on the canal side of the house was destroyed... it was pulverized. Furnace was destroyed, so we shut the gas off. By noon, the house, which was tipped slightly when we packed everything of value up and took it to my brother's house, was sliding off of the foundation. The weight of the house was shearing the sill plate bolts right off, and the house was about to end up in the canal. Canal District equipment was already on site, and we gave them the OK to demolish the house before it slid into the canal and flooded everything upstream.

The other really bad one was a house that was on the market, that my wife and I looked at only because I was interested in the lot it sat on. My intention was to bulldoze the house and level the lot, if I could get it cheap enough. This one, not only had been strapped with red iron like the one in the video, but also had huge poured concrete buttress pillars 3' x 3' all along the wall where the driveway and the trees were. Trees were an oak, a silver maple and something else that I don't recall. Couple of elms, I think. Driveway was a goner, but the owners hadn't replaced it because the local contractors wanted big money to deal with those big roots, and a couple had even said they wouldn't do it until the trees were removed. This place was a disaster waiting to happen. Floors of the house were so bad, uneven and tipped every which way, that we called it the Pinball Machine house... if you dropped a bowling ball on the floor, it would probably still be bouncing off the walls an hour later, and would have visited every room on the way. It also had roots actually protruding through the block wall basement into the interior, some of them an easy 4" to 5" in diameter. Believe it or not, they got $57,000.00 for that dump, and a young couple moved into it. Personally, I didn't think it was fit for use as a chicken coop, let alone human habitation.
 
I did foundation repair for a few years. I have seen that situation with and without trees. The main culprit is cinder block construction.

The weight of the tree is definitely adding to the problem. The tree is acting like a weight pushing the soil down and towards the cellar. The tree roots may be adding to the problem but they might not be yet. Removing the tree will help slow the collapse but it will not solve the problem.

The braces and fresh grout are just temporary solutions as well. Sadly they will probably have issues with that cellar forever. The best solutions for that cellar require exposing the exterior of the wall for repair and are very expensive.
 
The main culprit is cinder block construction.

Yup. There's nearly always water (hydrostatic pressure) involved, and the tree roots have an easy time pushing through the wet earth and up against the block walls. I don't think I've ever seen a reinforced, poured wall foundation do this. Poor grade work is nearly always present, as well. Overflowing gutters, etc.

As nice as it is to have the extra space, the last time around we bought a house with no basement. Too many headaches if things do start going wrong.
 
Well than, frost is likely not the case. I still hold that the old block is part of the problem. As stated above, hydrostatic pressure combined with the root action would be the next best theory.
 
Dig deeper.
Is there an echo in here?

That 2:22 might have been enough time to answer your question, using a shovel. If you find a root, prune it 1' from the house. Re crown, reduce sprawl <20% off, <3" cuts, check in 3 years, call it done. o and consider paclobutrazol; tis the season.
You CANNOT make a keep-or-kill decision without basic information, and it's unnecessary for an arborist to get suckered into even voicing such an opinion on a tree they do not own. imo.

Agree re cinderblock; i manage a white oak 40" dbh jsut 2' from house. crack in wall has grown from 7" to 13" in 15 yearrs. Owners shrug. A 1.5" bulge does not sound like a huge deal.
 
The same thing happens in concrete basements but it is much more common in cmu. Jeffgu is right about water problems nearly always being involved. As the wall moves in the soil loosens and gives the roots a perfect environment to keep expanding against the wall. Digging down to trim the roots and install a French drain with a sump pump would remove more pressure than removing the tree. It would also be a good time to properly seal and reinforce the wall from the outside.
 

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